<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" type="text/css" href="myStyle.css"/>
</head>
<body>
    <div style="width: 220px;height: 220px;background-color: blueviolet;">
    <div id="box2"/>
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</body>
</html>